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Preliminary results of measurements of hadronic cross sections with the CMD-3 detector at the VEPP-2000 electron–positron collider

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Abstract

Experiments with the CMD-3 detector at the VEPP-2000 electron–positron collider in the range of center of mass collision energies from 0.32 to 2 GeV have been performed since December 2010. The amount of accumulated data corresponds to an integrated luminosity of about 60 pb-1. The resultsof a preliminary analysis are presented for the following annihilation channels: e + e - → 3(π+π-), 2(π+π-π0), K + K -π+π-, K + K -, \(p\bar p\), and π+π-. Since processes of electron–positron annihilation that involve the production of multihadron states proceed through several intermediate states, their analysis is necessary for the correct description of the emission-angle and invariant-mass distributions of product particles.

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Correspondence to G. V. Fedotovich.

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Original Russian Text © G.V. Fedotovich, A.V. Anisenkov, V.M. Aulchenko, R.R. Akhmetshin, V.S. Banzarov, N.S. Bashtovoy, D.E. Berkaev, A.V. Bragin, A.I. Vorobiov, S.E. Gayazov, A.A. Grebenuk, D.N. Grigoriev, E.M. Gromov, D.A. Epifanov, A.L. Erofeev, Yu. M. Zharinov, V. L. Ivanov, F.V. Ignatov, V.F. Kazanin, S.V. Karpov, A.N. Kirpotin, O.A. Kovalenko, A.N. Kozyrev, E.A. Kozyrev, I.A. Koop, P.P. Krokovny, A.E. Kuzmenko, A.S. Kuzmin, I.B. Logashenko, P.A. Lukin, A.P. Lysenko, K.Yu.Mikhailov, V.S. Okhapkin, E.A. Perevedentsev, Yu.N. Pestov, A.S. Popov, G.P. Razuvaev, Yu.A. Rogovsky, A.L. Romanov, A.A. Ruban, A.E. Ryzhenenkov, N.M. Ryskulov, A.L. Sibidanov, E.P. Solodov, A.A. Talyshev, V.M. Titov, B.I. Khazin, P.Yu. Shatunov, Yu.M. Shatunov, B.A. Shwartz, D.B. Shwartz, V.E. Shebalin, D.N. Shemyakin, S.I. Eidelman, L.B. Epshteyn, Yu.V. Yudin, 2015, published in Yadernaya Fizika, 2015, Vol. 78, No.s. 7–8, pp. 635–646.

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Fedotovich, G.V., Anisenkov, A.V., Aulchenko, V.M. et al. Preliminary results of measurements of hadronic cross sections with the CMD-3 detector at the VEPP-2000 electron–positron collider. Phys. Atom. Nuclei 78, 591–602 (2015). https://doi.org/10.1134/S1063778815040043

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